Version number 4. This time with a three sided box, I was trying to communicate the message “hey, this is in 3d” to the viewer. This idea will come up again later when I make the switch to a true 3d plotting package based on OpenGL.

Another downside to scatterplot3d is that the datapoints themselves are actually characters, and are subject to getting mangled when the font is not supported when moving between versions of Illustrator and Acrobat. Hence the colored circles have been mangled into some weird shape here.